AI 中文总结
本文针对Rowan等人2023年研究的225个候选系统，发现33.8%为两个食双星的混合信号，提供76个已确认混合系统的正确识别结果及周期，提醒相关研究需重视该高误报比例。
AI 中文摘要
在Rowan等人的工作基础上，我发现大量被归类为三星/四星系统的天体实际上只是混合信号。我对Rowan等人提供的225个候选系统进行了仔细检查，发现其中三分之一的系统实际上是两个不同食双星的混合信号，它们在天球上彼此分隔良好，典型角距离为数十角秒，部分目标的角距离甚至超过100角秒。这种情况可能是由于TESS像素相对较大，且未对所有可用星表和测光数据进行充分交叉核对导致的。我提供了包含正确识别结果及对应周期的76个已确认混合系统列表。在未来研究中，报告双食双星新发现时，需考虑到这一高达33.8%的误报系统比例。
英文摘要
Following the work by Rowan et al., I found that a large fraction of systems presented as triple/quadruple stars are in fact only blends. After careful inspection of 225 candidate systems from Rowan et al., I found that one-third of them are, in fact, only blended signals of two different eclipsing binaries, well separated from each other on the sky. Their typical angular separation is dozens of arcsec, reaching up to more than 100 arcsec for some targets. This is probably due to relatively large TESS pixels and insufficient cross-checking of all available catalogues and photometric data. I present a list of 76 confirmed blends with their correct identification and respective periods. Such a high fraction (33.8 per cent) of reported false-positive systems should be taken into account in future studies, when reporting to new discoveries of doubly eclipsing candidates.
Commentspublished in: 2025MNRAS.544L.174Z , Monthly Notices of the Royal Astronomical Society: Letters, Volume 544, Issue 1, pp. L174-L179, 6 pp
Journal ref2025MNRAS.544L.174Z
